Ball-bearing porch-swing hook



' 1,62 63 May 17,1927. .w ROSS 9,3

BALL BEARING PoRcH swING Hook Filed April 9, 1926 Patented May 17, 1927.

UNlTED STATES WALTER ROSS, F LOUISVILLE, KENTUCKY.

BALL-BEARING PORCI-I-SWING HOOK.

Application kfiled April 9,

In the present inventiomthe same beingl a ball bearing porch swing hook, it is the purpose to provide a device of this kind,

wherein means are afforded to reducev the friction between a trunnion of a hanger and an eye at one end of the hook, from which swing strands or ropes are suspended, thereby avoiding squeaking and the likel during the movements of the swing. Y f

Another purpose vis to provide an improved ball bearing porch swingl hook, in-` cluding means for retaining the eye of the hook on the trunnion of the hanger, said means consisting of a washer and a Cotter key operatively connected with theV trunnion to retain the eye (which is provided with a raceway) in engagement with antifrictional means.

The invention comprises further features and the combination of parts, as will be hereinafter set forth, shown in the drawings, and claimed.

In the drawings:-

,Figure 1 is a sectional view through an improved ball bearing porch swing hook, showing the eye of the hook, as mounted upon the trunnion of a hanger.

Figure 2 is' a sectional view on line 2-2 of Figure 1.

Figure 3 is a view in eleva-tion of the hanger.

Figure 4 is a view in side elevation of the eye end of the hook. Y

Figure 5 is a view in elevation of the eye end of the hook, showing the inner face, to better illustrate the raceway.

Referring to the drawings, 1 esignates a hanger, the shank of which is thread-ed as at 2 for fastening the hangerV into a stationary support, such as the ceiling ef a porch. The lower end of the shank is turned laterally, provided with an enlargement 3 at the junction of the lateralk portion and is provided with a shoulder 4 and beyond the shoulder with a trunnion 5.

Operatively mountedon the trunnion 5 is a hook member 6, the hook end 7 of which may be connected with swing strands or ropes, not shown.` The other end of the hook member has an opening 8 in which a collar 9 is secured at 10 in any suitable 1926. Serial No. 100,919.

manner, either by electrically wel-ding, brazing, or otherwise.

This collar Slis dished and is provided with a raceway 11 cooperating with antifrictional ball bearings 12 to retain them in ycontact with the shoulder 4, whereby the collar may have freedom of movement, and thereby reduce friction to a minimum. The collar where 1t 1s electrically welded, or

Votherwise fastened in the opening of the hook member, is provided with a flange 13 to limit its insertion into the opening 8, prior to the welding process for fastening the collar to the hook member. As shown, the collar is mounted in position, so that the raceway may engage with the ball bearings 12, after which a washer 13 is fitted to the trunnion to retain the collar in position. A cotter key 14 is inserted through a transverse opening 15 near the end of the trunnion, not only securing the washer in position, but also insuring securement of the collar in place in engagement with the ball bearings.

Obviously, as the strands or ropes of a swing oscillate the collar may have freedom of movement on the ball bearings, and thereby relieve squeaking and the like as the. swing oscillates.

Obviously, the anti-frictional ball bearings may be easily lubricated by injecting a lubricant into the raceway at the point indicated by the numeral 16.

The invention having been set forth, what is claimed is:

1. AY ball bearing hook comprising in combination a threaded depending hanger, a reduced laterally offset trunnion delining a shoulder at the inner end of the trunnion, a hook member provided for the ,cellar having a raceway operatively engaged with the trunn1on, anti-frictiona-l ball bearings be-V tween the raceway and the shoulder, and means carried by the trunnion to retain the collar in position. f

2. In a ball bearing hook, the combination with a depending hanger provided with a lateral trunnion and a shoulder adjoining the trunnion, of a hook member provided with a hook at one end and an eye at the other end having a raceway, the eye operatively mounted 'upon the trunnion, the. trunnion engaged with the Washer to anti-frictional members between the raceretain it against the `Wall of the eye, to re- Way and the shoulder, the Wall of the racetain the raeeway against the anti-frictional 10 Way overlying the shoulder and actin as members. means to guide lubricant to the antiric- In testimony whereof I aiix my signature. tional member, a Washer on the trunnion, Y

a Cotter key passing transversely through "WALTER ROSS..r 

